29991990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{569}}^1$

素因数の和:837

約数の個数: 64

約数和(自身を含む): 82736640

約数和(自身を除く): 52744650

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 251, 502, 569, 753, 1138, 1255, 1506, 1707, 1757, 2510, 2845, 3414, 3514, 3765, 3983, 5271, 5690, 7530, 7966, 8535, 8785, 10542, 11949, 17070, 17570, 19915, 23898, 26355, 39830, 52710, 59745, 119490, 142819, 285638, 428457, 714095, 856914, 999733, 1428190, 1999466, 2142285, 2999199, 4284570, 4998665, 5998398, 9997330, 14995995, 29991990]

約数ペア:

[(1, 29991990), (2, 14995995), (3, 9997330), (5, 5998398), (6, 4998665), (7, 4284570), (10, 2999199), (14, 2142285), (15, 1999466), (21, 1428190), (30, 999733), (35, 856914), (42, 714095), (70, 428457), (105, 285638), (210, 142819), (251, 119490), (502, 59745), (569, 52710), (753, 39830), (1138, 26355), (1255, 23898), (1506, 19915), (1707, 17570), (1757, 17070), (2510, 11949), (2845, 10542), (3414, 8785), (3514, 8535), (3765, 7966), (3983, 7530), (5271, 5690)]